Hi all. I've been tinkering with a mechanized/air cavalry list. My local meta is pretty heavy with monstruous creatures and various power armour melee units. I don't need to be incredibly competetive but i would rather not get steamrolled every game i play. Comments and suggestions are appreciated!

HQ

3x company command squads
4 meltas each

1 company command squad
Chimera
2x plasma gun
Officer of the fleet

Troops
4x veterans in chimeras
2x plasma gun 1x heavy flamer for each squad

Heavy support
2x wyvern

Fortifications
Aegis defense line with comms relay

Formation
Emperor's spear
3x vendetta

So my thoughts are that i would load the three melta command squads in the vendettas. The vendettas would pretty much be guaranteed to come in on turn two with the comms relay and the officer of the fleet as well as the formation bonus. I think i would park the five chimeras behind the aegis and pop smoke launchers turn one. I know thats less firepower but i think surviving that first turn before the vendettas arrive is pretty key. The one thing im not sure about is the heavy flamer in each vet squad. Its a nice bit of a deterrent to melee units but i know plasma and flamer combo is kind of odd. Maybe i should switch up a squad or two to be meltas? I'm open to suggestions!